chmod (): Operation not permitted in PHP script.

A PHP script, if the new registered user uploads the file, mkdir (the user name of the new folder), chmod (the folder under the upload, 0777).
Result hint error chmod (): Operation not permitted a line in the PHP script
SSH view the permission to upload the file, if not chmod, the default is 0644. And I want to make the file into 0777 permissions, because the user after uploading if not satisfied, but also can be modified.

That's probably the PHP script.

if ($_post[' file ']) {
mkdir () file_put_content () chmod () mysql_query ()
}

Reply to discussion (solution)

Operation not permitted
Operation not allowed

Obviously, the permissions are insufficient.

Operation not permitted
Operation not allowed

Obviously, the permissions are insufficient.

How to solve this problem? Allow each user to have chmod 0777 folder permissions for a subfolder?

(1) You check under, your PHP code file itself, its owner, it is recommended to belong to Apache (nginx) user, so the code generated directory, also belong to the Web user
(2) Directory permissions settings 700, file permission settings 644 (readable, writable, it is recommended not to give operational permissions)

Look at the file.

(1) You check under, your PHP code file itself, its owner, it is recommended to belong to Apache (nginx) user, so the code generated directory, also belong to the Web user
(2) Directory permissions settings 700, file permission settings 644 (readable, writable, it is recommended not to give operational permissions)

Look at the file.

How do I set file permissions? Chown Apache:apache (or root:root) upload.php? In this case, the normal user in the browser, you can execute the file?

The limit is chmod a+x

The limit is chmod a+x

Originally with chmod, not chown ah.
chmod I only add numbers ...

Word one, but first?
chmod 655 Fiename

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